export const formatTimeAgo = (timestamp: number) => {
  const diff = Date.now() - timestamp
  const minutes = Math.floor(diff / 60000)
  if (minutes < 1) return '刚刚'
  if (minutes < 60) return `${minutes}分钟前`
  const hours = Math.floor(minutes / 60)
  if (hours < 24) return `${hours}小时前`
  const days = Math.floor(hours / 24)
  return `${days}天前`
} 